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The Journal of Sports Medicine and Physical Fitness 2020 Dec 14

DOI: 10.23736/S0022-4707.20.11686-4

Copyright © 2020 EDIZIONI MINERVA MEDICA

lingua: Inglese

Retro-walking improves symptoms, pain, and function in primary knee osteoarthritis: a randomised control trial

Arvin R. GOONASEGARAN 1, Anwar SUHAIMI 2, Abdul H. MOKHTAR 1

1 Department of Sports Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; 2 Department of Rehabilitation Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia


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BACKGROUND: Primary knee osteoarthritis is the leading cause of chronic disability and pain among adults worldwide. Retro-walking has been shown to reduce patellofemoral pain, increases functional capability while strengthening the lower limbs and improving proprioception and balance. We aim to examine the effects of retro-walking on symptoms, pain, and perceived ability to perform daily activities in comparison to forward-walking in subjects with primary knee osteoarthritis.
METHODS: This was a single-blinded, randomised control trial involving 34 subjects between the age of 45-70 years (58.41 ± 5.93) comparing retro-walking (RW) to forward-walking (FW). Subjects were randomly allocated to receive either RW with structured resistance training (SRT) or FW with SRT; 3 times a week for 12 weeks. The symptoms, pain, and function of daily living sub scores of the Knee Injury and Osteoarthritis Outcome Score (KOOS) along with Timed up and go (TUG) and Chair stand test (CST) were assessed at baseline and after 12 weeks. The outcomes were analysed with two-way repeated measure analysis of variance.
RESULTS: Significant improvements for all outcomes were observed intra-group (p-value < 0.05) after 12 weeks. The KOOS sub scores, TUG and CST times was not statistically significant between study groups (pvalue >0.05). However, the partial eta squared scores for all outcomes were better in the RW group compared to FW except for CST.
CONCLUSIONS: It can be concluded that RW is a feasible and non-inferior option to FW in the rehabilitation of subjects with bilateral knee OA.


KEY WORDS: Osteoarthritis, Knee; Exercise therapy; Walking; Rehabilitation

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